and the standard errors of the intercept, X1 and X2 given by 1.1,1.8,and 1.4 respectively based on 30 points. Find the t-statistic for the intercept X

Two fire-lookout stations are 190 miles apart, with station a directly south of station b. both stations spot a fire. the bearing of the fire from station a is upper n 55 degrees upper e and the bearing of the fire from station b is upper s 60 degrees e. how far, to the nearest tenth of a mile, is the fire from each lookout station?

Two lines parallel to a third line are parallel to each other. always sometimes or never

Apatient is to take 60 mg of an antibiotic on day 1, take 45mg on days 2 and 3, take 30mg on days 4 and 5 and take 15 mg on days 6 and 7. how many total mg will the patient take?